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GGW275 | 14.2L | 275 kW INDUSTRIAL SPARK-IGNITED GENERATOR SETPRAMAC | Power Engineering Division
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Image used for illustration purposes only
Standby Power Rating275 kW, 344 kVA, 60 Hz
Prime Power Rating*248 kW, 309 kVA, 60 Hz
*EPA Certified Prime ratings are not available in the US or its Territories
UL2200, UL508, UL142, UL489
CSA 22.2
BS5514 and DIN 6271
SAE J1349
NFPA 37, 70, 99, 110
NEC700, 701, 702, 708
ISO 3046, 7637, 8528, 9001
NEMA ICS10, MG1, 250, ICS6, AB1
ANSI C62.41
IBC 2009, CBC 2010, IBC 2012, ASCE 7-05, ASCE 7-10, ICC-ES AC-156 (2012)
TM
®
®
*Assembled in the USA using domestic and foreign parts
PRAMAC ensures superior quality and performance by managing all aspects of production: from design to manufacturing.
PRAMAC can trace its roots back to 1966; from then onwards it has been expanding its activity in the energy and material-handling sector, continuously growing globally with a wide and flexible product range.
In the field of power generation, PRAMAC offers solutions for every kind of power supply demand: portable and industrial generators for stand by and prime power applications and mobile and towable lighting for outdoor needs.
PRAMAC operates through a wide distribution network and provides global coverage even in the most demanding markets.
PRAMAC products are designed to the following standards:
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CONTROL SYSTEM
Digital H Control Panel- Dual 4x20
Display Program Functions
• Programmable Crank Limiter
• 7-Day Programmable Exerciser
• Special Applications Programmable Logic Controller
• RS-232/485 Communications
• 3-Phase Sensing Digital Voltage Regulator
• 2-Wire Start Capability
• Date/Time Fault History (Event Log)
• Isochronous Governor Control
• Waterproof/Sealed Connectors
• Audible Alarms and Shutdowns
• Not in Auto (Flashing Light)
• Auto/Off/Manual Switch
• E-Stop (Red Mushroom-Type)
• NFPA110 Level I and II (Programmable)
• Customizable Alarms, Warnings, and Events
• Modbus® Protocol
• Predictive Maintenance Algorithm
• Sealed Boards
• Password Parameter Adjustment Protection
• Single Point Ground
• 16 Channel Remote Trending
• 0.2 msec High Speed Remote Trending
• Alarm Information Automatically Annunciated on the Display
Full System Status Display
• Power Output (kW)
• Power Factor
• kW Hours, Total and Last Run
• Real/Reactive/Apparent Power
• All Phase AC Voltage
• All Phase Currents
• Oil Pressure
• Coolant Temperature
• Coolant Level
• Engine Speed
• Battery Voltage
• Frequency
Alarms and Warnings
• Oil Pressure
• Coolant Temperature
• Coolant Level
• Low Fuel Pressure Alarm
• Engine Overspeed
• Battery Voltage
• Alarms and Warnings Time and Date Stamped
• Snap Shots of Key Operation Parameters During Alarms and Warnings
• Alarms and Warnings Spelled Out (No Alarm Codes)
ENGINE SYSTEM
• Oil Drain Extension
• Heavy Duty Air Cleaner
• Fan Guard
• Stainless Steel Flexible Exhaust Connection
• Factory Filled Oil and Coolant
• Radiator Duct Adapter (Open Set Only)
• Critical Exhaust Silencer
Fuel System
• Fuel Line - NPT Connection
• Primary and Secondary Fuel Shutoff
Cooling System
• Closed Coolant Recovery System
• UV/Ozone Resistant Hoses
• Factory-Installed Radiator
• 50/50 Ethylene Glycol Antifreeze
• Radiator Drain Extension
Electrical System
• Battery Charging Alternator
• Battery Cables
• Battery Tray
• Rubber-Booted Engine Electrical Connections
• Solenoid Activated Starter Motor
ALTERNATOR SYSTEM
• GENprotect™
• Class H Insulation Material
• 2/3 Pitch
• Skewed Stator
• Permanent Magnet Excitation
• Sealed Bearing
• Amortisseur Winding
• Full Load Capacity Alternator
GENERATOR SET
• 12 Position Load Center
• Internal Genset Vibration Isolation
• Separation of Circuits - High/Low Voltage
• Separation of Circuits - Multiple Breakers
• Wrapped Exhaust Piping
• Standard Factory Testing
• 2 Year Limited Warranty (Standby Rated Units)
• 1 Year Limited Warranty (Prime Rated Units)
• Silencer Mounted in the Discharge Hood (Enclosed Only)
ENCLOSURE (if selected)
• Rust-Proof Fasteners with Nylon Washers toProtect Finish
• High Performance Sound-Absorbing Material (Sound Attenuation Enclosures)
• Gasketed Doors
• Stamped Air-Intake Louvers
• Upward Facing Discharge Hoods (Radiator and Exhaust)
• Stainless Steel Lift Off Door Hinges
• Stainless Steel Lockable Handles
• RhinoCoat™ - Textured Polyester Powder Coat Paint
STANDARD EQUIPMENT
GGW275 | 14.2L | 275 kW INDUSTRIAL SPARK-IGNITED GENERATOR SETPRAMAC | Power Engineering Division
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CONFIGURABLE OPTIONS
ENGINE SYSTEM
○ Engine Coolant Heater
○ Oil Heater
○ Air Filter Restriction Indicator
○ Stone Guard (Open Set Only)
○ Fan and Belt Guards
ELECTRICAL SYSTEM
○ 10A UL Battery Charger
○ Battery Warmer
ALTERNATOR SYSTEM
○ Alternator Upsizing
○ Anti-Condensation Heater
○ Tropical Coating
CIRCUIT BREAKER OPTIONS
○ Main Line Circuit Breaker
○ 2nd Main Line Circuit Breaker
○ Shunt Trip and Auxiliary Contact
○ Electronic Trip Breakers
GENERATOR SET
○ Demand Response Rating
○ GenLink® Communications Software (English Only)
○ Extended Factory Testing (3-Phase Only)
○ Vapor Recovery Heater
ENCLOSURE
○ Standard Enclosure
○ Level 1 Sound Attenuation
○ Level 2 Sound Attenuation
○ Level 2 Sound Attenuation with Motorized Dampers
○ Steel Enclosure
○ Aluminum Enclosure
○ Up to 200 MPH Wind Load Rating*
○ AC/DC Enclosure Lighting Kit
○ Enclosure Ambient Heaters
○ Door Alarm Switch
CONTROL SYSTEM
○ NFPA 110 Compliant 21-Light Remote Annunciator
○ Remote Relay Assembly (8 or 16)
○ Oil Temperature Sender with Alarm
○ Remote E-Stop (Break Glass-Type, Surface Mount)
○ Remote E-Stop (Red Mushroom-Type, Surface Mount)
○ Remote E-Stop (Red Mushroom-Type, Flush Mount)
○ Remote Communication - Modem
○ 10A Run Relay
○ Ground Fault Indication and Protection Functions
○ 120V GFCI and 240V Outlet
○ 100 DB Alarm Horn
WARRANTY (standby gensets only)
○ 2 Year Extended Limited Warranty
○ 5 Year Limited Warranty
○ 5 Year Extended Limited Warranty
○ 7 Year Extended Limited Warranty
○ 10 Year Extended Limited Warranty
ENGINEERED OPTIONS
ENGINE SYSTEM
○ Coolant Heater Ball Valves
○ Fluid Containment Pan
ALTERNATOR SYSTEM
○ 3rd Breaker System
CONTROL SYSTEM
○ Spare Inputs (x4) / Outputs (x4)
○ Battery Disconnect Switch
GENERATOR SET
○ Special Testing
○ Battery Box
GGW275 | 14.2L | 275 kW INDUSTRIAL SPARK-IGNITED GENERATOR SETPRAMAC | Power Engineering Division
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Generac
Cylinder # 6
Type In-line
Displacement - L (Cu In) 14.17 (864.71)
Bore - mm (in) 135 (5.31)
Stroke - mm (in) 165 (6.50)
Compression Ratio 9.5:1
Intake Air Method Turbocharged/Aftercooled
Number of Main Bearings 7
Connecting Rods Carbon Steel
Cylinder Head Cast Iron GT250, OHV
Cylinder Liners Ductile Iron
Ignition Altronic CD1
Piston Type Aluminum
Crankshaft Type Ductile Iron
Lifter Type Solid
Intake Valve Material Special Heat- Resistant Steel
Exhaust Valve Material High Temp Alloy Steel
Hardened Valve Seats High Temp Alloy Steel
Engine Governing
Governor Electronic
Frequency Regulation (Steady State) ±0.25%
Lubrication System
Oil Pump Type Gear
Oil Filter Type Twin Full-flow with Intercooler
Crankcase Capacity - L (qts) 34.3 (36.2)
Cooling System
Cooling System Type Pressurized Closed Recovery
Fan Type Pusher
Fan Speed (rpm) 1,894
Fan Diameter - mm (in) 762 (30)
Fuel System
Fuel Type Natural Gas
Carburetor Down Draft
Secondary Fuel Regulator Standard
Fuel Shut Off Solenoid Standard (Dual)
Operating Fuel Pressure 7” - 11” H2O
Engine Electrical System
System Voltage 24 VDC
Battery Charger Alternator Standard
Battery SizeSee Battery Index 0161970SBY
Battery Voltage (2) - 12 VDC
Ground Polarity Negative
APPLICATION AND ENGINEERING DATA
ENGINE SPECIFICATIONS
General
Make
ALTERNATOR SPECIFICATIONS
Standard Model Generac 520 mm
Poles 4
Field Type Revolving
Insulation Class - Rotor H
Insulation Class - Stator H
Total Harmonic Distortion <5%
Telephone Interference Factor (TIF) <50
Standard Excitation Permanent Magnet
Bearings Single Sealed
Coupling Direct, Flexible Disc
Prototype Short Circuit Test Yes
Voltage Regulator Type Full Digital
Number of Sensed Phases All
Regulation Accuracy (Steady State) ±0.25%
GGW275 | 14.2L | 275 kW INDUSTRIAL SPARK-IGNITED GENERATOR SETPRAMAC | Power Engineering Division
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** Refer to “Emissions Data Sheet” for maximum bHP for EPA and SCAQMD permitting purposes.
Deration – Operational characteristics consider maximum ambient conditions. Derate factors may apply under atypical site conditions. Please consult a Generac Power Systems Industrial Dealer for additional details. All performance ratings in accordance with ISO3046, BS5514, ISO8528 and DIN6271 standards.
POWER RATINGS
Standby/Demand ResponseThree-Phase 120/208 VAC @0.8pf 275 kW Amps: 955
Three-Phase 120/240 VAC @0.8pf 275 kW Amps: 828
Three-Phase 277/480 VAC @0.8pf 275 kW Amps: 414
Three-Phase 346/600 VAC @0.8pf 275 kW Amps: 331
STARTING CAPABILITIES (sKVA)sKVA vs. Voltage Dip
480 VAC 208/240 VAC
Alternator kW 10% 15% 20% 25% 30% 35% Alternator kW 10% 15% 20% 25% 30% 35%
Standard 275 303 454 605 757 908 1,059 Standard 275 227 341 454 568 681 794
FUEL CONSUMPTION RATES*Natural Gas – ft3/hr (m3/hr)
Percent Load Standby
25% 971.1 (27.5)
50% 1,704.2 (48.3)
75% 2,403.2 (68.1)
100% 3,160.9 (89.5)* Fuel supply installation must accommodate fuel consumption rates at 100% load.
COOLINGStandby
Air Flow (Inlet Air Combustion and Radiator) ft3/min (m3/min) 16,712 (473.2)
Coolant Flow per Minute gal/min (l/min) 119 (450)
Coolant System Capacity gal (l) 19 (71.9)
Heat Rejection to Coolant BTU/hr 872,408
Inlet Air cfm (m3/min) 9,670 (274)
Maximum Operating Ambient Temperature °F (°C) 122 (50)
Maximum Operating Ambient Temperature (Before Derate) See Bulletin No. 0199270SSD
Maximum Radiator Backpressure in H2O 0.5
COMBUSTION AIR REQUIREMENTSStandby
Flow at Rated Power cfm (m3/min) 765.6 (21.7)
ENGINE EXHAUST
Standby Standby
Rated Engine Speed rpm 1,800 Exhaust Flow (Rated Output) cfm (m3/min) 2,677 (75.8)
Horsepower at Rated kW** hp 415.2 Maximum Total Exhaust Backpressure (Post Turbo) inHg (kPa) 0.75 (2.5)
Piston Speed ft/min 1,949 Exhaust Temp (Rated Output - Post Silencer) °F (°C) 1,350 (732)
BMEP psi 211.3
OPERATING DATA
Standby - See Bulletin 0187500SSB
Demand Response - See Bulletin 10000018250
Prime - See Bulletin 0187510SSB
GGW275 | 14.2L | 275 kW INDUSTRIAL SPARK-IGNITED GENERATOR SETPRAMAC | Power Engineering Division
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* All measurements are approximate and for estimation purposes only.
Part No. 0L0031Rev. C 07/27/17
OPEN SET (Includes Exhaust Flex)L x W x H in (mm) 138.74 (3,524.1) x 57.6 (1,463.1) x 68.04 (1,728.3)
Weight lbs (kg) 6,000 (2,722)
STANDARD ENCLOSUREL x W x H in (mm) 174.7 (4,437.4) x 52.98 (1,345.7) x 77.8 (1,976.1)
Weight lbs (kg)Steel: 7,550 (3,432)
Aluminum: 6,756 (3,071)
LEVEL 1 ACOUSTIC ENCLOSUREL x W x H in (mm) 200.19 (5,084.7) x 57.49 (1,460.4) x 77.80 (1,976.1)
Weight lbs (kg)Steel: 8,012 (36,42)
Aluminum: 6,957 (3,162)
LEVEL 2 ACOUSTIC ENCLOSUREL x W x H in (mm) 180.65 (4,588.4) x 57.49 (1,460.4) x 107.3 (2,725.4)
Weight lbs (kg)Steel: 8,584 (3,902)
Aluminum: 7,201 (3,273)
GGW275 | 14.2L | 275 kW INDUSTRIAL SPARK-IGNITED GENERATOR SETPRAMAC | Power Engineering Division
DIMENSIONS AND WEIGHTS*
PR Industrial s.r.l. | Località Il Piano snc | 53031 Casole d'Elsa, Siena - Italy©2019 PR INDUSTRIAL SRL. All rights reserved. All specifications are subject to change without notice.